Area Calculator
Calculate the area of circles, rectangles, triangles, trapezoids, and parallelograms. Free online area calculator with formulas.
Frequently Asked Questions
Which shapes can this area calculator handle?
It supports circles, rectangles, squares, triangles, trapezoids, parallelograms, and ellipses. Select your shape, enter the required dimensions, and the result is instant.
What units should I use for the inputs?
Use consistent units — all measurements in meters, centimeters, feet, or inches. The calculator outputs the area in the squared version of whatever unit you enter.